SYNTHESIS OF N-UNSUBSTITUTED AND N-METHYL DERIVATIVES OF 4-ARYL-2,6-DIMETHYL-1,2-DIHYDROPYRIDINE-3,5-DICARBONITRILES

Article abstract of DOI:10.1007/BF00475478

In the reduction of 2,6-dimethyl-4-arylpyridine-3,5-dicarbonitriles or their N-oxides by sodium borohydride, a mixture of 1,2- and 1,4-dihydropyridine-3,5-dicarbonitriles is formed. 1,2,6-Trimethyl-4-aryl-1,2-dihydropyridine-3,5-dicarbonitriles were obtai